Lightweight oxygen delivery system



FIG. 1 is a perspective view of the oxygen delivery system;

FIG. 2 is an elevation view from the rear.

FIG. 3 is an elevation view from the front.

FIG. 4 is an elevation view from the side.

FIG. 5 is an elevation view from the other side.

FIG. 6 is a plan view from below; and,

FIG. 7 is a plan view from above.

The ornamental design for an lightweight oxygen delivery system, asshown and described.